Gas-engine-startng crank.



I; J. BBLLNG. GAB .ENGINE STARTING GBANK. APPLITIN FILEDFEBrZS, 1911. f f' 1,008,487, Patentet. Nov. 14, 1911.

I [Im u 10 thereof.

so `gas engines,

etgrting crankff The invention V410nn"automatic release of the starting 'crank .shown); 5 0 ."The clutchhead 12 is carried by a shaft cfproviding this shaft' 15 UNTTED STATES. PATENT oi FFICE.

FRANK J.l rELLING, or oswneo, gelesen or ONE-HA LF Tonnes n.

BUBDIGK. or

ILLINOIS.

ens-Enommeranrme cmxr Tofall whom 'it may concern:

' Be it known that I, FRANK J. PELL1NG, a citizen f the United States, and resident of swego, county of Kendall,and State of Illnols, have invented certain new and use? Improvements in GasEngine-Starting Cranks', of which the following isa specification, and which are illustrated in the accompanying drawings, forming a part The invention relates to fori'use in starting gas engmes by hand, and its object is to 'provide an automatic .release of the crank clutch in the event ofthe Ven-v gine starting in the wrong direction.

The Invention consists of a. structure such as `is hereinafter described, and illustrated in .the accompan Figure l .is a

of its movement, jsome of Kthe parts being broken away; Fi 2 is a similar view in a glane perpendicu t 1g. 1` 1s taken, and showing the fmanner a plication of Y tle device' to an engine I cran'and Fig.

showing the automatically releasableeluteh. The invention is designed to prevent acci.` dents'which are not'uneommon in starting 4and particnlarl 4engines ofV automobiles. .Th fe red to are such p"` tonhas p assedthe center, Vthat is to say,

-36 commenced its outstroke, with the result that 'the operator `with whic .he is turningthe provides for l ln fthe event -of the reversal of the engine Shaft, `and consequently ,removesthe danger 0f accident tothe operator. 4

' edev-ice asshown ,comprises the usual i5 crankarm 10, modified as hereinafter described; the crankhandle 11, and the clutch n 4head.12'foren aging a` clutch'fblock 13 on the Vcrank sha '1 4 of the engine (not 15, `upon which l'the crank-arm y10 is 'normall free to turn instead ,of bein-g per-ma- .ne'nty fixed thereto, as in the practlce which has'heretofo're prevailed. For the purpose with a suitable devices adapted in g drawings, 1n which ongitudinal vsection of the. l device in a plane parallel-'- with the direction arto the plane on which l 3"'is a detail'in perspective in starting the e accidents 'ref as result from the igni. ti yof the first charge. to be fired, before the Specicationotletten Patent 'Application led -February 2 3, 1911.v

g projecting lugs or shoulde -desi 'cate between the arm arm' 16. A dog 1 20, and: taking the -form the grip'rnember 11 is .means of 'a pin 26 with they @Xfielidvg leOSely necte.

crank 1u Patente l-Nov. 14, 1911. 'serial no. 610,351.

bearing, a bracket arm 1( is attached 'to the crank-arm 10, as by thy and to provide al housil bolts 17, 18, itsouter end being.oii''set f1 om the crank-arm to-'provide a longer beal ing'for the shaft The shaft 15 is provided 'with radially i rs'19, 20,as many j'udgmentof the vlI bese lugs are lo- 1 0 andthe 'bracketthereof being used as the er may dictate.

of a roller 21, is carried by an oscillating bar' 22,'pivotally attached, as shown at 23, to the l 10.A The outer end of the aar 22 ro1`;a b y inoiinted'.'I A' short crank-:1.131125 is i xed to the `inner grip 11, .and is connected .by br 22, this' .Pi-I1 through acurved-slot 2T for enga ging the `lugs -1 9 1 crank-armv terminates. f a littl :short of thefcrank 1 in 24 uponlyvhich in thecranlzarm 10,.be,111' fixed. in one lof" the members the other.

When the 22,01' 25 and loosely operator eren S the grip member 11' for the Vgiu-pose' of tu rning'the crankc 12 h aving been con;

arm, 'the cl11t head with 'the' clutchfblcck A13, the gr'p member is'rst turned-on @he 'crankpin 24 as'the arm 10 begins to mo ze, swinging the bar 22 on its viv'ot 23.and e aga' ng the dog 21 with one o the lugs 19,' l0, t usseeurely clutching the Should "the crank `Shaft V1.4 of the engine be .turned in the reverse direct on by a reina crank arm to the shaft 15.

ture ignition of the engine charge, t `e ini- N tial backward movement o1 the crankam .10 causes the rip memberV l1 to'be turned irection, ther dlsen aging the dog from .t and 5111s relieving Vthe ope; d nnger of accident. By t e inthe reverse by immediately atar. from any gii ing the dog 21 form of a roller, its 1 elease fpm the is moreeasily ar d certainly 'ef-I fected. s 'a' further precau sure the necessary movezne 1t of the grip Iember as .tothe .crank-ai zn upon a re.

versal of direction the gri 1 lember is channeled' longitudia as s own at 28, one face of each being :brupt and the other being chamfered awa; ,jasshown at 2 9. The chamfering ermite the .grip mem- '.ber to easily slide through .the operators hand ,as the crank. is turned the normal.

' combination, a shaft having a radial shoulx a tion, the vertical wall 'of the ooves prev nting the grip from freelyv sllding in the h nd u'pon a reversal of direction and thus i uring the desired movement ofthe dogryin bar 22.

A s il ustratedthe' device is adapted for use in narily employed in connection with as engines, the shaft 15 bein normally isconvnected from the engine s aft.. It is obvious, however that the action of the safety de vice will be the same, even if'the shaft 15 were a permanent art of thel engine shaft. In that case, in ortierto prevent rattling, it is `advisable to introduce a light s ring to normally hold the dog 21 awa rom the lugs l19, l20. Such a spring is s own at 30 as Wound around one of the bolts 172 and reacting-between the bar 22 and a side wall of the cover plate 16.

I claim as my invention- 1. In ai starting crank for gas engines, in com ination, a shaft having'aradial shoulder, a crank arm rotatably mounted on the shaft, an oscillatable bar carried by the arm, a dog carried b the bar for eng ing, the shoulder, a cran pin mounted onate outer end ofthe arm, an oscillatable-handgrip carried b the pin and operatively connected with the4 bar.

2. -In'a starting crank for gas engines, in

der, a crank arm rotatably mounted on the. shaft, an oscillatable bar carried by the arm, a do carried b 'the bar for enga ing the sh'o daga crank pin mounted on t e outer end of the arm, an oscillatable hand grip carri'e'd the pin, a crank arm fixed to the grip an a pin carried by the last-named crank arm and engaging the bar.

3. In a starting crank for gas engines, in

vplace of the crank heretofore ordicombination, a sha-ft having a radial shoulder, a crank arm rotatably -mounted on the Copies of this patent may 'be obtained for' ve cents sha ft, an oscillatable bar carried by the arm, a rotatable dog carried bythe bar for engaging the shoulder, a crank pinmounted on the outer end of the arm, an oscillatable hand grip carried by the pin and operatively connected with the bar.

4. In a starting crank for gas engines, in combination, a vshaft having a radial shoulder, a crank arm rotatably mounted on the shaft, an oscillatable bar carried by the arm, a dog carried by the bar for engaging the shoulder, a cran pin mounted on the outer end of the arm, an oscillatable hand 'grip' carried by the pin andoperativelyconnected with the bar,

y 5. In a starting crank for gas engines, in combination, a der, a crank arm rotatably mounted on the shaft, an oscillatuble bar carried by the arm, a do carried b the bar for engaging the shoul er, acran outer end of the arm, grip carried by the pin nected with the bar, and a spring for normally holdin the dog out of engagement with the shou der.

'\-'6. In a starting crank for gas engines, in combination, a shaft having a radial shoulder, a crank arm 'pivote'd on the shaft. a

an oscillatable hand such grip having longitudi-J nal shoulders the rearward faces of which are abrupt and their forward faces being in#- cl-ined.

shaft having a radiall slwulpin' mounted on the and operatively conbar pivoted intermediate of its ends to the-Vf arm and being enga eable with the shoulder, a grip member pivoted to the louter end of the arm, a crank arm exd to the member and pivotally attached to the outer end of the bar, and a spring urging the bar away from theshoulder.

FRANK J. PELLING. lVitnesses:

F.`J. NEWTON, J, H. BUnnlcii.

each, by addressing theommissioner of Patents,

Washington, D. C. 

